Similar analyses were done for neutral mesons [1]} and fictiousMesons should be made of quarks with unequal charges, e.g., \(\bar{u}d\)  having \(-2/3\)  and \(-1/3\)  charges. charged mesons made of equally charged quarks and antiquarks [2]} for light flavors. There are also studies on light-heavy [3]} and heavy-heavy flavors [3]}, [5]} for neutral mesons. Mesons at very large \(B\)  were also analyzed in a relativistic framework but within the lowest Landau level approximation [6]}, [7]}.
